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Saline soils contain varying amounts and proportions of ions of Na', Me*, Ct, SO42-. About 60 percent of the saline soils in Pakistan are saline-sodic or sodic in nature containing high proportions of ... Read More
In Peshawar valley, soybean crop lacks natural nodulation and normally artificial inoculation is required for effective nodulasion and nitrogen fixation of the crop. In order to strengthen and stimula ... Read More
A total of 30 and 5, 29 and 8 replicated field trials were conducted, in cotton and central zones of the Punjab, respectively in the year 1997-99 to evaluate cotton response to Zn and B application. I ... Read More
Naturally soils vary in texture and contain varying amount of clay minerals. Flood plain soils are rich in mica clay, which is the main stream of K supply. In this region, river and groundwater also c ... Read More
Sorption of orthophosphate (OP) applied in different forms was studied in the laboratory using a Typic Camborthid Pakistani soil and a Typic Haplorthod soil from UK. In another trial, the Typic Haplor ... Read More
Field experiments were conducted during 1996 and 1997 at the experimental farm of NIFA to compare the efficiency of soil-applied and fertigation applied P using Potato as test crop. Phosphorus was app ... Read More
The effect of mineral N as urea (46% N) and organic N as Sesbania aculeate, L (3% N) at 80 kg ha' alone and in various combination on the yield, yield component and N nutrition of wheat crop (cv. Fakh ... Read More
Field experiments were conducted on cultivar N1AB-78 for Iwo seasons involving four rates of nitrogen (0, 75, 150, 300 kg N ha') and four rates of sulphur (0, 15, 30, 60 kg S ha') at Central Cotton Re ... Read More
Genotypic response of nine wheat cultivars to different salinity and hypoxia levels and in combination were studied in matrix culture for the growth and ionic relations. Wheat exhibits genotypic diffe ... Read More
Keeping in view the wide spread zinc and to a lesser extent Cu deficiencies in our crops and soils, two pot culture studies employing wheat cullivars cv. Innlab-91 and Pasban were undertaken to invest ... Read More
Two pot experiments employing three rice varieties viz., Basmati-385, Basmati-Pak and a mutant DM-25 were conducted on a Hafizabad series soil containing 0.4 and 0.7 mg kg-' B and Cu, respectively. In ... Read More
Pot culture and field studies were carried out employing rice varieties Basmati-370, Bas;nati-385 and DM-25 to investigate their Zn nutrition on calcareious soils. Zinc doses applied were 0, 2.5, 5 an ... Read More
Zinc requirement of wheat crop was investigated through a field experiment laid out in farmer's field on a zinc (Zn) deficient soil near Kasur in Lahore Division during 1997-98. Levels of Zn (kg he) t ... Read More
A hydroponics study was carried out to investigate the effect of silicon (Si) on increased tolerance of eleven cotton genotypes against root rot. Pre-germinated seedlings were grown with and without S ... Read More
In Pakistan there are two feed gaps per year. During these periods fodder from salt-bush may require frequent grazing. Such frequent grazing/cutting may effect the survival and productivity of salt-bu ... Read More
Deficiencies in soil zinc (Zn) may limit yield of rice and wheat in rice tract of the Punjab (Gujranwala and Lahore Divisions). The build-up of phosphorus (P) due to its continuous application could a ... Read More
N : P application in optimum amount is considered to be very important and necessary, as our soils are deficient in Nitrogen and Phosphorous. The past studies on different crops showed that N and P ap ... Read More
Dispersion of sodic and saline-sodic soils adversely influences crop and can accelerate failure of water conveyance system. The critical coagulation concentration (CCC) of montmorillonite clay was mea ... Read More
A study was conducted in Fordwah Eastern Sadiqia South during the year 1998-99 and 1999-2000 with the objective to evaluate the impact of different irrigation treatments on soil and crops yield. The e ... Read More
Soil erosion and small annual additions of organic matter make nitrogen (N) the plant nutrient most deficient in agro-ecosystems of Azad Jammu and Kashmir. Most soils require additional N in the form ... Read More
For the development of soil and plant phosphate (P) model, the soil labile-P values are required in addition to fertilizer P availability indices. This study was conducted to determine the relationshi ... Read More
Since the recovery of phosphate in calcareous soils is low, the effectiveness of added pyrophosphate (PP) and organic acids in reducing phosphate sorption by calcium carbonate (CaCOs) was studied in t ... Read More
Missing-element technique field experiments were carried out for determining the components of balanced nutrient management in rainfed chickpea (Cicer arietinum L.) and blackgram (Vigna nrungo (L.) He ... Read More
Information about optimum soil water content for efficient use of nutrients is essential for higher crop yield. A pot experiment was conducted from 1996 to 1998 to assess the effect of soil water pote ... Read More
Microbially released auxins have great influence on plant growth and development. Thirty-one cultures of bacteria were isolated from the rhizosphere of different varieties of wheat grown at different ... Read More
Various Azotobacter cultures were isolated from the rhizosphere of maize. Ten fast growing cultures were selected (numbered as Zr, __Zig), and evaluated far their potential to produce auxins (IAA-equi ... Read More